20321232030 has 96 divisors (see below), whose sum is σ = 61028948448. Its totient is φ = 4636569600.

The previous prime is 20321232007. The next prime is 20321232049. The reversal of 20321232030 is 3023212302.

It is a happy number.

20321232030 is a `hidden beast` number, since 20 + 321 + 2 + 320 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20321231994 and 20321232012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 586891 + ... + 620550.

It is an arithmetic number, because the mean of its divisors is an integer number (635718213).

Almost surely, 2^20321232030 is an apocalyptic number.

20321232030 is an abundant number, since it is smaller than the sum of its proper divisors (40707716418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20321232030 is a wasteful number, since it uses less digits than its factorization.

20321232030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207482 (or 1207479 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20321232030 its reverse (3023212302), we get a palindrome (23344444332).

The spelling of 20321232030 in words is "twenty billion, three hundred twenty-one million, two hundred thirty-two thousand, thirty".